Molder&#39;s flask, pattern-frame, and odd side



J. TURNER. MOLDERS FLASK, PATTERN FRAME, AND ODD SIDE.

APPLICATION FILED DEC; 8, I919.

D Patented 0015.5,1920. 2 SHEETS-SHEET I VIII'III A 2 J. TURNER.

MOLDERS FLASK, PATTERN FRAME, AND ODD SIDE. APPLICATION FILED DEC. 8, 1919.

1,354,590, Patented Oct. 5, 1920.

2 SHEETS-SHEET 2.

INVENTOR, fill/vs TON YE/RNER,

ATTORNEYS.

UNITED STATES PATENT OFFICE.

iormstron 'rnnnnn, or snnrrrnnn, ENGLAND.

method of constructing molders flasks.

odd-sides, pattern frames and the like and has for its object the production of articles which are lightin weight, not liable to twist or warp after continued use, and which can be produced more expeditiously and at less cost than in. accordance with the present methods.

A further object consists in the adaptability of the improved construction to jig plates. 7

According to the invention the molders flask is constructed of two sheet metal cylinders concentric with one another and ar ranged a short distance apart so as to form an annular space between the cylinders. This space is filled with slag or'other suitable material, and in order to enable the material to obtain a firm grip on the sides of the flask, both cylinders and walls are provided with a series of perforations or recesses. The perforations are formed by stamping or in any other suitable manner so as to form or leave a projecting edge or flange aroundthe hole projecting into the annular space between the walls of the flask. Handles are. provided on opposite sides of the flask to enable it to be lifted. These handles are formed of round metal bar, split at one end for a portion of their length, the split ends being bent at right angles to the handle portion and embedded in the filling material. The walls are provided at opposite ends with guide pins and metal bushes or sockets respectively to enable the flask to register with corresponding pins or bushes arranged in or on an adjoining flask or mold ing plate or board.

The ends of the flask having bushes or sockets in its outeredge, may be provided with arecess or window above the end of the bush to enable the ,hole in the bush to be kept free of sand and facilitate the opera- Specification of Letters Patent.

' mornnnsrnasx, PATTERN-FRAME, AND onn srnn.

Patented Oct. 5, 1920.

Application filed December 8, 1919. Serial No. 343,380.

The molding plate or board may be pro vided wlth clearance holes within which are placed gulde pins adapted to be locked when adjusted and in order to insure accurate adjustment of the guide pins, pieces of thin sheet metal may be fixed to the board marked with center lines.

The method of constructing the flasks may also be applied to the making of patternfframes or odd sides.

In order that my invention may be readily understood reference is made to the accompanying drawings showing several applications of'the invention by way of example, in which p V Figure l is a plan view of a molders flask. which may be used as a drag or a cone.

Fig. 2 is a section on the line AA of Fig. 1.

Figs. 3 and 4 are part section and front view showing a recess or window above the inner end of the bush or socket.

Fig. 5 is a sectional view of art of a deep flask provided with an inwardlyprojecting annular rim or lip to receive two or more locking bars.

Fig. 6 is a sectional view through the looking bars.

Fig. 7 is a plan,'and

Fig. 8 a section on the line BB of Fig. 7 showing an odd-side for molding a simple curved perforation plate.

, Figs. 9 and lOare longitudinal section and plan respectively showing the application of the invention to a pattern frame.

Fig. 11 is a sectional view showing part of a molding plate.

Fig. 1 2 shows the invention applied to a jig plate. i

Referring to Figs. 1 to 4. a is the other casing and 7. the inner lining, both formed of sheet metal and arranged concentric with one another so as to form an annular space 0 between each wall. The annular space 0 is filled with slag or any other suitable mate rial. Each wall is provided with a series of recesses or perforations e punched, stamped, or otherwise formed from the outside of the outer casing and from the inside of the inner lining. The holes may be of any convenient size and are formed so as to leave inwardly projecting gged edges or flanges 6 hen the annular space is filled with the material. the edges of the recesses are {gm-l l enju:=a:l;lml while the outer surfaces of the' two walls present a comparatively cope is lifted off.

' be'completely embedded in the material. It

The flask is provided atb'othe nds with a" seriesof metalbushes or sockets 7 those at the upper end. having nuts f at the bottom 'of the bush toreceive' screwed pins. The

bushes or sockets are preferably of such a size as to leave suflicient space between the sides of the walls to permit the bushes to V will of course-be understood that the bushes and pins on'eaeh end of the flask are arranged equidistant around the ends'of the flask-so asjto register with corresponding bushesor pms n an ad onnng flask or'mold- I ing plate or board.

Th flask is provided with liandlesitv pro.-

jecting from opposite sides of the fl-ask'whioh fit tightly into "holes formed in the outer casing, These handles arepreferably formed, of round metal of the, desired length the inner ends being split longitudinally and bent round at, 90 degrees at h so as to obtaina firmholdin the material 3 with which the walls are'filled.

. In the construction shown'in Figs. 3 and 4,j b ushesfor sockets f are provided with a recess or window z above the inner end of the bush opening through the outer wall a so asto enable thehole in the bush t-o-be kept free of sand and facilitate the guiding of the flask onto a second flask or molding plate or board. p -1 r F'g. 5 shows a deep flask, "The inner walls 6 in this case are provided at each end 7 with an inwardlypi 'ojecting lip or flange 7c cutaway at a seriesfofequidistant points in its periphery to. receivethe loose barsor "45 arms Z shown in Fig. 6. These bars or arms are formed of side-membersl and a middle member Z slightlyfshorter in length than the membersZ and of the same thickness as the lipor flange 7a, the arms or bars preferably four in number, are arranged at right 7 angles to one another in the form of a cross,

and are adaptedto be inserted into the out m away portionsof the lip k andr rotated so that the lip .is engaged. on each side by the 7 members Z of the arms. H In Figs; 7; and 8,. asimilar/ method of construction is shownapplied by way of eX- ample to an odd-side for molding a curved perforated. plate, although it'will be readily understood that the invention may be used forforming any desired :shape or form of odd-side; The frame {comprises longitudlnalside members mzof wood or othersuitable material and transverse membersn While the frame is further strengthened by provided with aseries of metal bushes r embedded in the mold and corresponding to the holes in'th'e perforated plate to be molded. 'The upper surface may also have a perforated sheet zinc casing simllar to 0 if necessary.

The'pattern frame tFigs; "9 and '10) is built up of side members 23 and crossmembers t of wood-or other suitable material the frame being further, strengthened. by

bolts t? passing ltransversely through the frame at each end. The bottom E. of the frame issupportedbymembers i so. that the depth of the frame may be regulated to suit the depth of the pattern. The pattern frame is provided at each endwith bushes s which may if necessary have nuts located at'their. inner ends as shown to theleft of F 9Lat sh The. odd-side is formed as followsz "I H "Pins .8 are placed in these bushes" and bushesl to be. embedded in the odd side are placed over the projectingends of said pins. The perforated zincforming the top and sides of the odd-side isnow laid on the bottom ofthe frame and bushes or pieces of tubular-metal r placed. over the prints 7*,

formed on the bottom t tocorresp'ond with theperforations in the pattern. Theframe for the odd-side isnow positioned onthe pattern frame and plaster of Paris poured in. lWhen the materia'llha s set, the whole is turned overso that the odd-side forms the drag and the pattern frame. the cope. The bushes g the ZlIlCllIllIlgO and the bushes or pieces oftubular metal 1 are now firmly embedded in the odd side as shown in Figs. 7and8.

The prints 7", are now takonout of the pattern frame and thepattern 'for 'the perforated plate placed in the framef Guide pins'areplaeed in the bushes of the pattern frame and alsoin the bushes of theodd-side tonreceive the. flasks." p 7 The odd-side is provided with handles 39 at each end. for lifting,and with bushes g embedded in the body of the material at or near each end for receiving pins for securmg the flask in vcorrect POSltlOIlp Four .bushe's may if necessary be supplied on each in Fig. which the method of securing the, bushes in a moldingplate, the bushes u' are made fast in the plate byrum ioo ning spelter into the annular space a between the bush a and the side of the recess in the plate, the latter being provided with one or more grooves a in order to obtain a better hold onthe material. The guide pin o with the bush and nut for embedding in thefiask is placed in position as shown.

' 12 shows 'thearrangement applied to a plate. The frame is constructed in the same manner as the flasks, the bushes 10 being thefull depth of the frame as shown. In this case the three holes are bored in a board slig it'ly larger than the diameter of the guide pins and when the pins are adjusted they are screwed up tight, The frame forming the is positioned on the board and plaster of Paris is filled in at 10 The guide pins are made a snug fit in the bushes, so that it is preferable to remove the board from the pins'by unscrewing the nuts, and removing the pins from the plate separatelyv What 1 claim as my invention and desire to obtain by Letters Patent is 1. Molders flasks, pattern frames or oddsides comprising a frame or casing having hollow walls, filling material packed in the hollow walls of the casing and recesses or perforations formed in the walls of the casing to engage and retain the filling material, and inwardly projecting edges to the perforations.

2. Molders flasks comprising two concentric metal frames placed one within the other so as to leave aspace between them, filling material packed in the space between the frames, means for keying the filling material in place and sockets located in the fill- ,ing material on the upper and lower faces of the flask to receive guide pins for locating the flasks one above the other.

8. Molders flasks comprising two concentric metal frames placed one within the other so as to leave a space between them, filling material packed in the space between the frames, means for keying the filling material in place, bars inserted through the outer casing into the filling material to form handles and split ends to these bars which ends are bent outwardly and embedded in the filling material.

4. Molders flasks, comprising two concentric metal frames placed one within the other so as to leave a space between them, filling material packed in the space between the frames, means for keying the filling material in place, sockets located in the filling material on the upper and lower faces of the flask to receive guide pins for locating the flasks one above the other, bars inserted through the outer casing into the filling material L-O form handles and split ends to these bars which ends are bent outwardly and embedded in the filling-material. V

5. Molders flasks comprising two concentric metal frames placed one within the other sons to leave a space between them, filling material packed in the space between the frames, means for keying the filling ma terial in place, inwardly projecting flanges on th inne frames, recesses in these flanges, and bars having forked ends to engage in these recesses so that they may beturned so as to be lockd upon the flange.

6. Molders flasks comprising two concentric metal frames placed one within the other so as to leave a space between them, filling material packed in the space between the frames, means for keying the filling material in place and sockets located in the filling material on the upper and lower faces of the flask to receive guide pins for locating the flasks one above the other, in wardly projecting flanges on the inner frame, recesses in these flanges, and bars having forked ends to engage in these recesses so that they may be turned so as to be locked upon the flange.

' 7. Molders flasks comprising two concentric metal frames placed one within the other so as to leave a space between them, filling material packed in the space between the frames, means for keying the filling material in place, bars inserted through the outer casing into the filling material to form handles and split ends to these bars which ends are bent outwardly and embedded in the filling material, inwardly projecting flanges on the inner frame, recesses in these flanges, and bars having forked ends to engage in these recesses so that they may be turned so as to be locked upon the flange.

8. Molders flasks comprising two concentric metal frames placed one within the other so as to leave a space between them, filling material packed in the space between the frames, means for keying the filling ma terial in place and sockets located in the filling material on the upper and lower faces of the flasks to receive guide pins for locating the flasks one above the other and recesses or windows in the side wall and the outer frame communicating with the sockets to allow any sand accumulated in the sockets to pass out through these windows.

9. Molders flasks comprising two concen tric metal frames placed one within the other so as to leave a space between them, filling material packed in the space between the frames. means for keying the filling material in place and sockets located in the filling material on the upper and lower faces of the flask to receive guide pins for locating the flasks one above the other, inwardly projecting flanges on the inner frame, recesses in these flanges, bars having forked ends to engage in these recesses so that they may be turned so as to be looked upon the flange and recesses or windows in the side wall and the outer frame communicating 'With the sockets t0 allow anys an daccumulated in thesockets to pass"'outzthroughthese windcwsf I 10. M0lders" flasks comprlslng two' concentric metal frames placed one Within the other seas to'leave a space between them, filling material packed'in the space between the frames, means for keying the filling material in place, bars inserted through the outer casing into the filling material to term handles, split ends to these bars which ends are bent butyva'rdlyand embedded in the filling nlat'er'ial; inwardly projecting flanges on the inner frame, recesses 1n theseflanges,

'barshaving forked ends to engage in these 7 through these Windows.

; JOHNSTON URNER 

